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Journal of Medical Entomology

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https://www.readbyqxmd.com/read/28525618/establishing-expanding-and-certifying-a-closed-colony-of-phlebotomus-argentipes-diptera-psychodidae-for-xenodiagnostic-studies-at-the-kala-azar-medical-research-center-muzaffarpur-bihar-india
#1
Puja Tiwary, Shakti Kumar Singh, Anurag Kumar Kushwaha, Edgar Rowton, David Sacks, Om Prakash Singh, Shyam Sundar, Phillip Lawyer
This pilot project was preliminary and essential to a larger effort to define the ability of certain human-subject groups across the infection spectrum to serve as reservoirs of Leishmania donovani infection to sand flies in areas of anthroponotic transmission such as in Bihar state, India. This is possible only via xenodiagnosis of well-defined subject groups using live vector sand flies. The objective was to establish at the Kala Azar Medical Research Center (KAMRC), Muzaffarpur, Bihar, India, a self-sustaining colony of Phlebotomus argentipes (Annandale & Brunneti), closed to infusion with wild-caught material and certified safe for human xenodiagnosis...
May 19, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28505314/diversity-of-mosquitoes-diptera-culicidae-attracted-to-human-subjects-in-rubber-plantations-secondary-forests-and-villages-in-luang-prabang-province-northern-lao-pdr
#2
Julie-Anne A Tangena, Phoutmany Thammavong, Naritsara Malaithong, Thavone Inthavong, Phuthasone Ouanesamon, Paul T Brey, Steve W Lindsay
The impact of the rapid expansion of rubber plantations in South-East Asia on mosquito populations is uncertain. We compared the abundance and diversity of adult mosquitoes using human-baited traps in four typical rural habitats in northern Lao PDR: secondary forests, immature rubber plantations, mature rubber plantations, and villages. Generalized estimating equations were used to explore differences in mosquito abundance between habitats, and Simpson's diversity index was used to measure species diversity...
May 15, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28505264/geographical-information-systems-in-determination-of-cutaneous-leishmaniasis-spatial-risk-level-based-on-distribution-of-vector-species-in-imamoglu-province-adana
#3
Hakan Kavur, Ozan Artun
The Imamoglu district located in the southeast of Adana province in Turkey is an endemic focus of cutaneous leishmaniasis (CL) owing to dominancy of Phlebotomus tobbi, which is a probable vector of Leishmania infantum. About 11.26% of CL cases reported each year are from Imamoglu, Adana, and between 2008 and 2015, 223 cases of CL were reported. Leishmania infantum, which may be transmitted by P. tobbi, Phlebotomus neglectus/syriacus, and Phlebotomus perfiliewi, is referred as leishmaniasis factor in Adana. Thus, the aim of this study was to map the risk areas for each sand fly species using remote sensing images based on environmental factors and geographical characteristics...
May 13, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28499036/potential-of-a-northern-population-of-aedes-vexans-diptera-culicidae-to-transmit-zika-virus
#4
Kyle L O'Donnell, Mckenzie A Bixby, Kelsey J Morin, David S Bradley, Jefferson A Vaughan
Zika virus is an emerging arbovirus of humans in the western hemisphere. With its potential spread into new geographical areas, it is important to define the vector competence of native mosquito species. We tested the vector competency of Aedes vexans (Meigen) from the Lake Agassiz Plain of northwestern Minnesota and northeastern North Dakota. Aedes aegypti (L.) was used as a positive control for comparison. Mosquitoes were fed blood containing Zika virus and 2 wk later were tested for viral infection and dissemination...
May 12, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28499023/the-chilean-recluse-spider-araneae-sicariidae-displays-behavioral-responses-to-conspecific-odors-but-not-to-several-general-odorants
#5
Victor Manuel Calbiague, Jesus Olivares, Erick Olivares, Oliver Schmachtenberg
Spiders of the family Sicariidae pose a serious threat to affected populations, and Loxosceles laeta (Nicolet) is considered the most venomous species. Development of nontoxic olfaction-based spider repellents or traps is hindered by a current lack of knowledge regarding olfactory system function in arachnids. In the present study, general plant odorants and conspecific odors were tested for behavioral responses in L. laeta. Although general odorants triggered neither attraction nor aversion, conspecific odor of the opposite sex caused aversion in females, and attraction in males...
May 11, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28505301/two-new-species-of-the-simulium-simulium-variegatum-species-group-of-black-flies-diptera-simuliidae-from-thailand
#6
Hiroyuki Takaoka, Wichai Srisuka, Atiporn Saeung
Two new species of black flies, Simulium (Simulium) srisukai and S. (S.) kiewmaepanense, are described from specimens collected in Thailand. Both species are assigned to the Simulium variegatum species-group of the subgenus Simulium (Simulium) Latreille. They are characterized by the darkened female femora and tibiae and six inflated pupal gill filaments, and the darkened female tibiae and six ordinary thread-like pupal gill filaments, respectively. Taxonomic notes are given to separate these new species from 10 related species among the group...
May 9, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28486652/swabbing-prairie-dog-burrows-for-fleas-that-transmit-yersinia-pestis-influences-on-efficiency
#7
David A Eads
Scientists and health-care professionals sometimes use a swabbing technique to collect fleas from rodent burrows, and later test the fleas for Yersinia pestis, the causative agent of plague. Detection of Y. pestis is enhanced when large pools of fleas are available. The following study investigated factors that might affect the rate at which fleas are collected from burrows in colonies of black-tailed prairie dogs (Cynomys ludovicianus). Data were collected from 13 colonies in New Mexico during 0600-1000 hours, June-August 2010-2011...
May 9, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28472470/effect-of-metarhizium-anisopliae-ascomycete-cypermethrin-and-d-limonene-alone-and-combined-on-larval-mortality-of-rhipicephalus-sanguineus-acari-ixodidae
#8
Omar Francisco Prado-Rebolledo, Jaime Molina-Ochoa, Roberto Lezama-Gutiérrez, Luis Jorge García-Márquez, Yureida B Minchaca-Llerenas, Eduardo Morales-Barrera, Guillermo Tellez, Billy Hargis, Steven R Skoda, John E Foster
The effect of the fungus Metarhizium anisopliae Ma14 strain, D-limonene, and cypermethrin, alone and combined, on the mortality of Rhipicephalus sanguineus Latreille larvae was evaluated. Eight separate groups with 25 tick larvae were inoculated with the fungus, cypermethrin, and D-limonene, and four groups were used as untreated controls. The groups were inoculated with serial dilutions of each treatment material: for example, conidial concentrations were 1 × 101, 1 × 102, 1 × 103, 1 × 104, 1 × 105, 1 × 106, 1 × 107, and 1 × 108...
May 4, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28472338/occurrence-and-probability-maps-of-lutzomyia-longipalpis-and-lutzomyia-cruzi-diptera-psychodidae-phlebotominae-in-brazil
#9
J D Andrade-Filho, R G C Scholte, A L G Amaral, P H F Shimabukuro, O S Carvalho, R L Caldeira
Leishmaniases are serious diseases caused by trypanosomatid protozoans of the genus Leishmania transmitted by the bite of phlebotomine sand flies. We analyzed records pertaining to Lutzomyia longipalpis (Lutz and Neiva, 1912) and Lutzomyia cruzi (Mangabeira, 1938) in Brazil from the following sources: the collection of phlebotomine sand flies of the Centro de Pesquisas René Rachou/Fiocruz (FIOCRUZ-COLFLEB), the "SpeciesLink" (CRIA) database, from systematic surveys of scientific articles and gray literature (dissertations, theses, and communications), and disease data obtained from the Information System for Notifiable Diseases/Ministry of Health (SINAN/MS)...
May 4, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28472319/evaluation-of-sterilized-artificial-diets-for-mass-rearing-the-lucilia-sericata-diptera-calliphoridae
#10
Le Zheng, Tawni L Crippen, Alan Dabney, Alex Gordy, Jeffery K Tomberlin
The impact of six sterilized diets (blood-yeast agar diet, decomposed beef liver diet, powdered beef liver diet, powdered fish diet, milk-based diet, and a chemically defined diet) on Lucilia sericata(Meigen) larvae reared at three densities (10 larvae, 20 larvae, and 40 larvae on 20 g diet) was determined in comparison to fresh beef liver as a control. Specifically, the effects of these diets on the following traits of L. sericatawere measured: 1) pupal weight, 2) pupation percentage, 3) eclosion percentage, as well as 4) adult longevity...
May 2, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28460074/weak-larval-competition-between-two-invasive-mosquitoes-aedes-koreicus-and-aedes-albopictus-diptera-culicidae
#11
Frédéric Baldacchino, Daniele Arnoldi, Charlotte Lapère, Roberto Rosà, Fabrizio Montarsi, Gioia Capelli, Annapaola Rizzoli
Aedes (Hulecoeteomyia) koreicus (Edwards) and Aedes (Stegomyia) albopictus (Skuse) are two invasive mosquito species well established in northeastern Italy, and these two species may co-occur in artificial larval habitats such as tires, buckets, drums, and catch basins. Because Ae. albopictus has been shown experimentally to be a superior competitor to several mosquito species, we investigated larval competition between Ae. koreicus and Ae. albopictus using two diet levels (low level and high level) and 10 Ae...
April 28, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28453779/first-record-of-lutzomyia-lutzomyia-longipalpis-diptera-psychodidae-phlebotominae-on-the-trinational-frontier-brazil-peru-bolivia-of-south-western-amazonia
#12
Diones Antonio Borges, Silvia Maria Guerra Molina, Mara Cristina Pinto, Eunice Aparecida Bianchi Galati, Manuel Cesario, Dennys Ghenry Samillan Ortiz
Na América do Sul, a principal espécie de flebotomíneo envolvido na transmissão de Leishmania infantum chagasi , agente etiológico da Leishmaniose visceral (VL), é Lutzomyia longipalpis (Lutz & Neiva, 1912). Esta espécie já foi registrada na Colômbia, Venezuela, Bolívia, Argentina, Paraguai, Uruguai e Brasil, onde foram registradas em 24 dos 27 estados brasileiros, com exceção do Acre, Amazonas e Santa Catarina. As coletas foram realizadas por um ano (abril de 2013 a março de 2014) utilizando-se armadilhas de luz tipo de CDC em diferentes ambientes no município de Assis Brasil, estado do Acre...
April 25, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28449112/phenotypic-variability-of-the-amazonian-species-rhodnius-brethesi-hemiptera-reduviidae
#13
A C Souza, S Catalá, A L Carbajal de la Fuente, A C V Junqueira
The wild species Rhodnius brethesi (Matta, 1919) (Hemiptera: Reduviidae) is found in areas of piassabais in microregion of Rio Negro, Amazonas, Brazil. Its geographical distribution overlaps the areas of Leopoldinia piassaba palm. In areas where palm trees are found, transmission cycle of Trypanosoma cruzi is related to the extractive activity of the palm fiber, exposing workers to wild vector transmission of this parasite. The close association with the palm tree L. piassaba suggests that this wild triatomine has special features in its sensory system allowing specificity of ecotope...
April 25, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28444198/isolation-of-the-lyme-disease-spirochete-borrelia-mayonii-from-naturally-infected-rodents-in-minnesota
#14
Tammi L Johnson, Christine B Graham, Andrias Hojgaard, Nicole E Breuner, Sarah E Maes, Karen A Boegler, Adam J Replogle, Luke C Kingry, Jeannine M Petersen, Lars Eisen, Rebecca J Eisen
Borrelia mayonii is a newly described member of the Borrelia burgdorferi sensu lato complex that is vectored by the black-legged tick (Ixodes scapularis Say) and a cause of Lyme disease in Minnesota and Wisconsin. Vertebrate reservoir hosts involved in the enzootic maintenance of B. mayonii have not yet been identified. Here, we describe the first isolation of B. mayonii from naturally infected white-footed mice (Peromyscus leucopus Rafinesque) and an American red squirrel (Tamiasciurus hudsonicus Erxleben) from Minnesota, thus implicating these species as potential reservoir hosts for this newly described spirochete...
April 24, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28444209/variation-in-the-time-of-colonization-of-broiler-carcasses-by-carrion-flies-in-nakhonsawan-province-thailand
#15
Kittikhun Moophayak, Kabkaew L Sukontason, Watcharapong Ruankham, Jeffery K Tomberlin, Nophawan Bunchu
Carrion flies are the primary insects colonizing vertebrate carrion; however, limited information is available on the variation in the time of colonization (TOC) as related to time of placement (TOP) and time of death (TOD), particularly in Thailand. Three seasonal sets of nine broiler carcasses (euthanized and placed in field within 0.5 h after death) were placed in mesh enclosures within a disturbed deciduous dipterocarp forest at Nakhonsawan Province, upper-central Thailand, for 3 d to determine the colonization time by carrion flies...
April 21, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28431125/corrigendum
#16
(no author information available yet)
No abstract text is available yet for this article.
April 20, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28431166/landscape-genetics-of-aedes-mcintoshi-diptera-culicidae-an-important-vector-of-rift-valley-fever-virus-in-northeastern-kenya
#17
Lindsay P Campbell, Alana M Alexander
Rift Valley fever virus (RVFV) is a vector-borne, zoonotic disease that affects humans, wild ungulates, and domesticated livestock in Africa and the Arabian Peninsula. Rift Valley fever virus exhibits interepizootic and epizootic phases, the latter defined by widespread virus occurrence in domesticated livestock. Kenya appears to be particularly vulnerable to epizootics, with 11 outbreaks occurring between 1951 and 2007. The mosquito species Aedes mcintoshi (subgenus Neomelaniconion) is an important primary vector for RVFV in Kenya...
April 18, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28419283/dna-based-identification-of-forensically-important-blow-flies-diptera-calliphoridae-from-india
#18
Meenakshi Bharti, Baneshwar Singh
Correct species identification is the first and the most important criteria in entomological evidence-based postmortem interval (PMI) estimation. Although morphological keys are available for species identification of adult blow flies, keys for immature stages are either lacking or are incomplete. In this study, cytochrome oxidase subunit 1 (COI) reference data were developed from nine species (belonging to three subfamilies, namely, Calliphorinae, Luciliinae, and Chrysomyinae) of blow flies from India. Seven of the nine species included in this study were found suitable for DNA-based identification using COI gene, because they showed nonoverlapping intra- (0...
April 17, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28419273/habitat-and-density-of-oviposition-opportunity-influences-aedes-aegypti-diptera-culicidae-flight-distance
#19
Heidi E Brown, Jonathan Cox, Andrew C Comrie, Roberto Barrera
Understanding the dispersal of Aedes (aegypti (L.) Diptera: Culicidae) after consuming a potentially infectious bloodmeal is an important part of controlling the spread of the arboviruses it transmits. Because of the impact on abundance, removal of oviposition sites is a key component of vector control. However, source reduction around a case may encourage dispersal of potentially infected vectors. We compare the effect of oviposition site availability on Ae. aegypti dispersal behavior within 30-m linear cages in three model ecosystems at the University of Arizona's Biosphere 2 research facility...
April 15, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28419272/insecticidal-and-behavioral-avoidance-responses-of-anopheles-minimus-and-culex-quinquefasciatus-diptera-culicidae-to-three-synthetic-repellents
#20
Wasana Boonyuan, Sunaiyana Sathantriphop, Krajana Tainchum, Vithee Muenworn, Atchariya Prabaripai, Michael J Bangs, Theeraphap Chareonviriyaphap
Escape responses, knockdown (KD), and toxicity of laboratory strains of Anopheles minimus Theobald and Culex quinquefasciatus Say to three synthetic mosquito repellents, DEET (N, N-diethyl-3-methylbenzamide), IR3535, or picaridin, at 5% v/v concentrations, were evaluated using repellent-treated papers in standard WHO tube assays and an excito-repellency (ER) test chamber system. The tube assays recorded knockdown effects of each repellent immediately after 30-min exposure and the final morality following a 24-h holding period...
April 15, 2017: Journal of Medical Entomology
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